Improvement in lamps



UNrran STATES PATENT; OFFICE.

C.' T. DAY. OF NEWARK, NEW JERSEY.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 40,334, dated October 20, 1863.

To ali whom. it may concern:

Be it known that 1,0. T. DAY, ot' Newark, in the county of Essex and lState of New Jersey, have invented'a new and useful Improvenient in LampBurners; and I do hereby declare that the followingis a full, clear, and exact description ot the same, reference being had to the accompanying,` drawings, making a parl'l of this` specitcation, in which- Figure l is a side view of my invention in an elevated state, showing' the manner in which the lamp is tlled or replenished with oil; Fig. 2, a vertical central section ot' the same in a closed state ready Vfor use.

Similar .letters ci' reference indicate. corresponding parts in the two figures.

This invention relates to an improvement in lamp-burners whereby the lamps are rendei-ed capable of being 'lled or replenished with oil at any timefeven when burning, and by a very simple adjustment or manipulation ot the burner, none of the parts ot the latter requiring to be detached or removed.

To enable those skilled in the art to fully understand and construct my invention, I will,

proceed to describe it.

A represents a socket, which may be of the usual form, and is secured tothe upper end of the fountain B of a lamp to receive the burner C; which may be constructed in any of the known forms for burning' coal-oil. The lower part of the burner is designated by a. bis the wick-tube 5 c, the cone or deector, and d the perforated shell on which the cone or deector rests. l

The ordinary burners have a screw cut-on the exterior of the lower part, a, and said part is screwed into the socket A, the latter being provided witli an internal screw thread to receive the screw of c. In my improvement the part a is provided with a pendent tube, D, of such dameter that it may slide freely up and down in the socket A,the interior of which is smooth', nr is lnot provided with a screw as hitherto.

In the exterior of the. tube D there nre swaged two spiral grooves, e e, at opposite points, and into these grooves projections ffiit, said projections being formed by swaging the socket A at the outer surface of its inner part. This would be the most `economical and desirable mode of manufacture; but pins may be driven into the inner side of A, and these pins itted into spiral grooves out into the exterior ot' D. By this arrangement it will be seen that the burner C may be raised and lowered by simply turning it, the grooves e serving as serewthreads and the pins or projec tions e as guides to move the burner as it is turned. y

In the tubel D there is made an opening, g, of sufficient size4 to receive the nozzle of an oil-can, and this opening g, when the burner C is lowered or fully down on thefountain, is below the socket A, as shown clearly in Fig'. 2,' and when the burner is raised, as shown in Fig. 1,'the openingr gis above the socket A, and by inserting the nozzle of an oil-can into it, as shown in red outlines, .the fountain may be supplied with oil.

It will be seen that in filling the lamp no parts of the burner require to be removed as the latter, with the 'chimney attached, maybe elevated together, so as to` expose or render accessible the opening g, and the lamp may be filled, even when burning, without any dificulty whatever.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination, with the burner C and socket A, of the tube D, opening g, spiral grooves e, and pins f, substantially in the manner herein shown and described.

C. T. DAY.

`Witnesses:

THos. S; J. DOUGLAS, J. W. CooMBs. 

